Fig.4. After uprighting #18 (pink outline), place single-tube brackets/band on #19-21, a double-tube bracket/band on #18 and regional arch wire through #18-21 brackets/bands (black line).  A rigid rectangular wire (blue) is inserted into the lower tube of #18.  The lower end of this wire is at the same level of the mini-implant.  Under tension using a closed coil spring or power chain (yellow), the tooth should undergo body movement mesially. Return to main article

Xin Wei, DDS, PhD, MS 1st edition 02/26/2012, last revision 02/26/2012